Wristwatch



FIG. 1 is a perspective view showing my new design for a wristwatch;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view from thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross-sectional view along section P-P thereof. 

The ornamental design for a wristwatch, as shown and described. 